请教英语长难句
1999 3
With optimism characteristic of all industrialized countries ,we came to accept that everyone is fit to be educated.Computer-education advocates forsake this optimistic notion for a pessimism that betrays their otherwise cheery outlook,Banking on the confusion between educational and vocational reasons for bringing computers into schools.computer-ed advocates often emphasize the job prospects of graduates over their educational achievement.中的Banking应该是banking吧?还有hat betrays their otherwise cheery outlook准确的应该怎么翻译?